Locking means and cover for valve stems



Mmh 1929. J. w. FRANKLIN, JR 1,704,286

LOCKING BANS AND COVER FOR VALVE STEIS Filed March 15,' 1928 fie. 2 4a 4 7 Patented Mar. 5, 1929.

UNITED STATES PATENT OFFICE.

LOCKING MEANS AND COVER FOR VALVE STEMS.

Application filed March 13, 1928. Serial No. 261,251.

My invention relates to an improved dust cap for tire valves which may be instantly removed from the valve without the necessity oi unscrewing the same.

An object of my invention is to provide a valve stem and a dust cap theretor, provided with means for instantly removing the top portion of the dust cap when it is desired to replenish the supply of air, said dust cap also having means for being quickly attached to and detached from the folly of the automobile wheel.

Some of the objects of my invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in wl ll [ill- Figure l is a cross sectional view taken through my device-at a point slightly in ad vance of the center thereof Figure a side elevation. of my device and the associated tire and telly.

Referring more particularly to the drawings, the niuneral 10 indicates the fell of an automobile wheel, while 11 indicates the conventional rim used therewith, which rim is adapted to serve to accommodate the casing 12 and the inner tube 13. A valve stem Lil is secured in the inner tube 13 in a conventional manner and the upper portion thereof is threaded in the conventional manner as indi-,

rated at it), these threads being shown in a mutilated condition for the purpose of show mt my dust cap, which will be later dcrestricted portion I secure by welding or other suitable means, the spring clips 00 and 36, the lower portions of which are adapted to fit into the members 31 and 32 and hold this housing securely against the rubber washer 32. In addition to the housing I provide the cap 38 which is adapted to fit over the restricted portion 34 and this cap has the two annular members 39 and 40 se cured on the inside thereof and between these can he used on valvc stems with muannular members 39 and all, the rubber member -11 is adapted to be fitted which has the portion 42 to fit over the topot' the valve stem l4. Inorder to hold this cap 38 in position and to permit easy removal 1 secure the lugs 43, 44, and 46 to the upper and lower portions oi? the dust protector and between the lugs and 44 I. provide the tension spring a? and between the lugs 45 and 46 I also provide the tension spring 48 as is illustrated in Figure 52.

In the drawings and specification I have setforth a preferred embodiment of my invention, and although specific terms are employed they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of my invention being set forth in the appended claims.

1 claim It, A valve cap formed of a tubular housing cut into upper and lower sections, the lower section being adapted to be releasably secured around the valve stem and the upper section being adapted to fit over the upper end of the lower section. tcnsirm means for holding the upper section in position on the upper end of the lower section and to permit the same tobe pulled upward and to one side, and a plug in the upper section adapted to fit over the upper end of the valve stem.

2. A valve tube cap formed of a cylindrical section and a cap-like covering universally hinged to the upper end of the cylindr'n cal section, releasable spring devices securci'l to the cylindrical sectirm, members adapted to be secured to the telly of an automobile wheel adapted to receive the spring devices to hold the cylindrical section in position around the valve stem.

3. In a dust cap for valve stems hooked members adapted [to be secured to the folly of an automobile wheel, and a cylindrical member adapted to fit around the valve stem and having spring members secured thereto and adapted to be fitted into the hooked members, a cylindrical cap adapted to be fitted over the top of the cylindrical section, lugs secured to the cylindrical section and to the sa1d cap, tension sprmgs secured between the said lugs, and a cap secured within the upper cylindrical cap and being adapted to fit over the end of the valve stem. p

In testimony whereof I aflix my si nature.

JAMES W. F ANKLIET, JR. 

